Gledhill Boilermate

Mains pressure hot water from an open
vented thermal store

Whilst
highly desirable, mains pressure hot water has historically brought with it the dangers associated
with unvented (pressurised) cylinders - EXPLOSION! Until the advent of the
Boilermate that is!

With the simple yet clever addition of a
mains-pressure heat exchanger a normal gravity pressure open-vented
vessel can be transformed to provide mains pressure hot water with
performance to match any other system.

This is basically the principle the
Boilermate employs. High performance mains pressure hot water without
any of the baggage unvented systems bring with them - G3 Building Regs,
Specialist Installers, Risk of explosion, pressure relief issues and
pipework etc.

Boilermate has been around for quite
some time. The system has been widely used throughout the UK within
the 'new-build' market and by discerning householders how have
recognised the superior performance and advantages of the system over
others - previous generations include Boilermate 2000 and Boilermate A
Class ranges.

Boilermate BP

If you are looking to upgrade your system
(which can be done with consummate ease) or you wish to replace an
earlier version with the new Boilermate BP you might like
to call our office to learn more.

As a replacement

For those wishing to replace earlier
versions of the Boilermate and Systemate
please be advised that while the function remains similar the new BP model differs internally. Earlier
models contained various auxiliary components (pumps, circuit boards, timers etc).
The design of the new Boilermate BP has made the function
and therefore the need for certain internal components on the earlier
model redundant. The new unit will however need a couple of items added
externally in order to function - namely a circulating pump and
programmer.

It must also be mentioned
that the function of the new Boilermate BP is to produce
mains pressure hot water only - unlike some earlier models of Boilermate
that also managed domestic heating requirements. When replacing some
earlier models minor adaptation of pipework may be necessary to
facilitate a Y or S plan installation.

A 3kW immersion heater and
a choice of scale inhibitors is available. These however are options and
must be stated and ordered at time of purchase.

The removal of certain
internal components has made the Boilermate visually and operationally
less intimidating to plumbers unfamiliar with the product and/or the
principles of Thermal Storage. It has also reduced the purchase cost
substantially!

The BoilerMate BP is an open vented thermal store.
Although it produces hot water at mains pressure it has no need
for pressure relief or safety equipment as by virtue of its open
vented status the unit is totally safe.

Reflecting not only in the cost of
purchase and installation, more importantly this makes the
Boilermate a wise choice for the safety conscious home owner and
landlord.

The BoilerMate BP is suitable for use with a gas or
an oil boiler and the heating system can be either open vented
or sealed.

Boilermate is a superb and simple
way to upgrade an existing traditional gravity hot water system
to mains pressure.

Low cost installation/maintenance
Easy to install BoilerMate BP can be fitted to existing systems,
including the existing boiler and controls, where appropriate. Unlike
unvented cylinders, BoilerMate BP does not require expensive safety
controls or the need to plumb temperature and pressure relief pipework
to outside. External expansion vessels are not required and wiring is
the same as any traditional Y, S or W plan system. BoilerMate BP thermal
stores do not require any annual maintenance.

The BoilerMate BP is supplied without any system kit, which can be
purchased as optional extras or be provided by the installer. The base
unit is suitable for either open vented or sealed heating systems with
the appropriate system kit.

BS6700: 1997 states that with unvented cylinders, the “maintenance
and periodic easing of temperature relief valves is particularly
important”. This is a landlord’s responsibility in tenanted properties
and annual checks must be carried out by a CITB trained person or
installer, having G3 approval. As BoilerMate BP is vented and therefore
inherently safe, there is no requirement for a safety discharge, and it
is not subject to Building Control Regulations – thus simplifying
installation and system maintenance enormously for the landlords or
homeowners.

BoilerMate BP
for use with gas or oil boilers and renewable energy

BoilerMate BP is a mains pressure vented hot water thermal store
suitable for open vented and sealed heating systems. The unit can be
fitted with a conventional ‘S’ plan, ‘Y’ plan or a control system of
your choice, and the controls can be plumbed inside the appliance giving
a clean finish within the airing cupboard.
• Header tank can be sited remotely
• Insulated in high performance metal cased foam

How the
BoilerMate BP works

The BoilerMate BP thermal storage system is supplied with primary water
from the boiler which heats the store via a primary coil. Secondary
water flows directly from the cold mains into a secondary coil where it
is heated by the store before being delivered to the taps.

Below are a couple of typical
configuration schematics for the Boilermate BP model.

Boilermate BP technical
information

Notes:
1. The appliance is supplied on a 100mm high installation base and comes
complete with a separate top up cistern. This can be installed with or
without an overflow/warning pipe as required.
2. An allowance for the top up cistern and the 100mm installation base
are both included in the minimum cupboard dimensions.

Please Note: Where
the mains water hardness exceeds 200ppm provision should be made to
treat the feed water to reduce the rate of accumulation of lime scale.
The optional factory fitted in-line scale inhibitor should be specified
at the time of order for hardness levels between 200 and 300 ppm (mg/l).
Where the water is very hard ie 300ppm (mg/l) and above the optional
polyphosphate type scale inhibitor should be specified at the time of
order.

Thermally advanced
It is not widely appreciated that uncased foam insulated cylinders can
lose up to 40% of their insulation value within weeks of manufacture and
can emit dangerous smoke if involved in a fire and therefore the
BoilerMate BP has been designed with an outer metal case. As with all
Gledhill cylinders there is no release of ozone depleting substances or
harmful emissions.

Cold and hot water distribution design – all modelsBoilerMate BP models are designed to be fed
directly from the mains. They fulfil the requirements of Water
Regulations and therefore do not require a check valve to be fitted to
the supply pipe. The performance of the BoilerMate BP is directly
related to the adequacy of the cold supply to the dwelling. This must be
capable of providing for those services which could be required
simultaneously and the maximum demand should be calculated. BoilerMate
BP will operate at dynamic pressures as low as 1.5 bar (at the
appliance) which must be available when local demand is at its maximum,
but the preferred range is between 2 and 3.5 bar. As a general
guideline, although a 15mm external service may be sufficient for the
smaller dwelling with one bathroom, a 22mm service is preferred (25mm
MDPE) and should be the minimum for larger dwellings.

Water treatment
The Domestic Heating Compliance Guide published in May 2006 requires a
water treatment device to be fitted where the hardness is greater than
200ppm. Full details are given in the Design & Installation manual
supplied with all BoilerMate BP units.

Optional plastic pipework – all models
This appliance is suitable for use with plastic pipework as long as the
material is recommended for the purpose by the manufacturer and is
installed fully in accordance with
their recommendations.

BM BP 125

Gledhill Boilermate Thermal Store 125 Litre

BM BP 145

Gledhill Boilermate Thermal Store 145 Litre

BM BP 185

Gledhill Boilermate Thermal Store 185 Litre

BM BP 215

Gledhill Boilermate Thermal Store 215 Litre

£875.40

BM BP 225

Gledhill Boilermate Thermal Store 225 Litre

£905.14

Options

BM XB 078

Optional Boilermate Immersion heater

£63.00

XB142

Gledhill in-line scale inhibitor (fitted and wired)

£60.00

Please be aware: If you require an electrical immersion heater
this must be ordered as an option and the cost added to the
purchase price. Immersion heaters are not supplied as standard
on the Boilermate.